https://devzone.nordicsemi.com/f/nordic-q-a/3154/nrf51822-is-not-starting-to-run-code-when-powered-off-and-powered-on-after-flash-downloadHi There, PCA10004_Schematic_And_PCB.pdf We are working on Nrf51822 chipset and have observed in our case that once we download the code we are able to discover the device but after we power off and power on we do not see the device anymore. Does theen-USTelligent Community 13Fri, 17 Feb 2017 14:37:51 GMThttps://devzone.nordicsemi.com/thread/11652?ContentTypeID=1Fri, 17 Feb 2017 14:37:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b971cb2e-ccdb-49ed-8775-93f11d9bef71luke<p>i am having the same problem and i cant figure out why.. altho when i ommit a certain part of my code that doesnt happen anymore but i still dont know why.</p><div style="clear:both;"></div>